bulkinsert 会导致僵尸记录吗？

Question

我正在使用 Sql Server Bulkinsert 将大量数据从 XML 文件上传到数据库，通过计划作业运行在晚上静静地进行。

背景

考虑这个虚拟模型：

+====================+       +====================+
+  INVOICE           +       +  INVOICE LINES     +
+====================+       +====================+
+ PK + InvoiceId     +-I-┐   + PK + InvoiceLineId +
+    + ...           +   └IX-+ FK + InvoiceId     +
+    + ...           +       +    + ...           +
+====================+       +====================+

我的消息来源有望为我提供可靠的数据，但 mistakes/errors 确实发生了。 Invoice Lines 中的 InvoiceId FK 可能指向 table Invoice.

中不存在的 InvoiceId

我的问题

Can feeding incorrectly referenced data to Bulkinsert cause zombie records?

一旦再次打开约束，插入它们会导致（可记录的）警告吗？

如果是这样，这些将是人类检测table。我可以创建一个 post-上传清理。上传前检查会非常复杂，如前所述，这不是我的责任。

PS

要特别清楚我对僵尸记录的意思：

Records stored in database that have no reason to exist because they have a reference towards a dependency, through a foreign key, in another table that is non-existant.

据我所知，这是一个普遍接受的术语。

Answer 1

是的，如果未指定 CHECK_CONSTRAINTS 选项，它会导致 INVOICE LINES 行引用不存在的 INVOICE（"zombie records"，如您所说）[=16] =]

CHECK_CONSTRAINTS Specifies that all constraints on the target table or view must be checked during the bulk-import operation. Without the CHECK_CONSTRAINTS option, any CHECK and FOREIGN KEY constraints are ignored, and after the operation, the constraint on the table is marked as not-trusted.

https://msdn.microsoft.com/en-us/library/ms188365.aspx

您可以使用 post-load 查询检测坏行

SELECT * 
FROM [INVOICE LINES] il
   WHERE NOT EXISTS (
   SELECT 1 FROM INVOICE i WHERE i.InvoiceId =il.InvoiceId ) ;

bulkinsert 会导致僵尸记录吗？

Can bulkinsert cause zombie records?

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bulkinsert